Food as Medicine

Eating for Your Kidneys
Slow disease. Feel better. Live longer.

What you put on your plate is one of the most powerful tools you have to protect your kidney function. We firmly believe that a plant-forward diet, regular movement, good hydration, and avoiding kidney toxins is the path to a longer, healthier life.

Evidence-Based Plant-Forward Lifelong Habits
A Choice You Make Every Meal

Two paths forward

When patients ask "is there anything I can do to slow my kidney disease?" — there is. It starts with how you eat. Here are your two options.

Path 1

Keep doing what you're doing

Standard Western diet, processed foods, lots of animal protein, plenty of sodium and added phosphorus.

  • More medications, higher doses
  • Progressive kidney decline
  • More hospital visits
  • Higher blood pressure
vs
Path 2 — Recommended

Lifestyle change with a plant-forward diet

Whole foods, more plants, less sodium and processed food, good hydration, regular movement.

  • Often fewer medications needed
  • Slower (or stopped) decline
  • Better blood pressure control
  • Benefits beyond kidneys — heart, weight, energy
Interactive Tool

Smart Food Swaps for CKD

Small changes add up. Tap a category to see kidney-friendly alternatives to common high-sodium, high-potassium, or high-phosphorus foods.

Note: These are general guidelines for patients with chronic kidney disease. Your specific potassium, phosphorus, and sodium needs depend on your lab values, stage of CKD, medications, and other health conditions. Always check with your nephrologist or renal dietitian before major changes.
The Three Minerals That Matter Most

Why your nephrologist watches these numbers

Na

Sodium

Too much raises blood pressure and causes fluid retention. Aim for less than 2,000 mg/day. Most comes from processed food, not the salt shaker.

K

Potassium

Healthy kidneys balance it; failing kidneys can let it climb. Too much can affect heart rhythm. Your dietitian will tell you your target range.

Learn more
P

Phosphorus

Builds up when kidneys can't filter it well. The phosphorus added to processed foods absorbs almost completely — it's worse than what's naturally in food.

Plant-Based Path

Curated resources to get started

These are the references Dr. Hurwitz recommends most often. Start with whichever speaks to you.

⭐ Start Here · NKF

Beginner's Guide to Plant-Based for CKD

The National Kidney Foundation's step-by-step starter guide — designed specifically for people with kidney disease.

Read the guide
NKF

Plant-Based Diet Overview

NKF's overview of the benefits of plant-based nutrition for kidney health — the why behind the recommendation.

Read the article
Dr. Greger · Video

Treating CKD with Food

Dr. Michael Greger's evidence-based walkthrough of how plant-based diets affect phosphorus, potassium, and kidney function.

Watch the video
Dr. Greger · Video

Reversing Stage 3 CKD

A case report showing how a whole-food plant-based diet improved kidney function — including the "PLADO" approach.

Watch the video
Dr. Greger · Article

Preventing Kidney Failure with Diet

The 3-minute read on why a plant-based approach can prevent kidney function decline — and the research behind the claim.

Read the article
Reference Site

NutritionFacts.org

Dr. Greger's full library of free, evidence-based videos and articles. One of Dr. Hurwitz's favorite reference sites.

Explore the site
Documentary

Forks Over Knives

The documentary that started the conversation. Two physicians put "food as medicine" to the test. Don't miss it.

About the film
Patient Story

Reversing CKD — A Patient Story

Real success stories from patients who improved their kidney function using a whole-food plant-based diet.

Read the story
Book

How Not to Die

Dr. Greger's NYT bestseller on the foods proven to prevent and reverse the diseases that take most lives — kidney disease included.

Learn more
Day-to-Day Tools

Practical CKD nutrition references

For specific guidance on labels, recipes, food substitutions, and managing potassium or phosphorus from major medical organizations.

Ready to put food to work for your kidneys?

Lifestyle change is hard — but the data shows it's also one of the most powerful tools we have. Talk with your nephrologist about whether a referral to a renal dietitian could help.

The fundamentals of a kidney healthy diet

So many of my new patients ask me "isn't there anything I can do to slow down my kidney failure?" This is generally followed by a discussion of their dietary history and how motivated are they to make ACTUAL change in their LIFESTYLE. I then review our two major options: 1) keep "doing what you're doing" and likely deal with more intensive medication treatment and likely progressive disease or 2) make a major change in LIFESTYLE and reap the global benefits on overall health and not just kidney health. Here at NNH we firmly believe that focusing on your LIFESTYLE, including eating a healthy plant-based (PB) diet, getting regular exercise or activity, good hydration and avoiding kidney toxins is the best way to protect your kidneys and live a LONG HEALTHY LIFE! There is mounting evidence that a plant-based diet is one of the most important aspects of maintaining kidney health and avoiding progressive kidney disease. I've attached what I think are some of the best references for beginning your Plant-Based journey.

Plant-based nutrition does not mean we "throw out your medications" but it will likely result in you needing LESS medications and those medications working BETTER.

NKF on PB Diet

The National Kidney Foundation has a great outline on the benefits of PB nutrition and getting started

Visit Site

NKF GETTING STARTED

This is a nice summary of some easy steps to getting started with a Plant-Based diet.

Visit Site

PREVENTING KIDNEY FAILURE WITH DIET

Read this excellent summary by Dr. Michael Greger.

Visit Site

LOWER PHOS LEVELS WITH PB DIET

Watch this review of an important study demonstrating benefits of PB diet on lowering phos levels

Watch Video

HOW NOT TO DIE

This is your introduction to NutritionFacts.org, which is one of my favorite reference sites. It's a great place to start

Visit Site

ONE SIMPLE CHANGE

The idea of FOOD AS MEDICINE is put to the test by two world known doctors. Don't miss this amazing documentary

Visit Site

REVERSING CKD

Read about the success others have had improving their kidney function using diet

Visit Site

Main Office

Northern Nephrology & Hypertension
52 Tom Miller Road
Plattsburgh, NY 12901
Phone: (518) 324-4000
Fax: (518) 324-4001

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© 2026 Craig G. Hurwitz, MD — Northern Nephrology & Hypertension